#include <stdio.h>
#include <math.h>
main()
{
    double y;
    int x,m;
    for (y=1;y>-1;y-=0.1)
    {
     m=acos(y)*10;
     for(x=1;x<m;x++)printf(" ");
     printf("*");
     for (;x<62-m;x++)printf(" ");
     printf("*\n");
    }
}